From be4a2dedf6816871349fbddd018f266e93e3c22d Mon Sep 17 00:00:00 2001 From: Namhyung Kim Date: Wed, 5 Sep 2012 14:02:49 +0900 Subject: [PATCH] perf header: Swap pmu mapping numbers if needed Like others, the numbers can be saved in a different endian format than a host machine. Swap them if needed. Signed-off-by: Namhyung Kim Cc: Ingo Molnar Cc: Paul Mackerras Cc: Peter Zijlstra Cc: Robert Richter Link: http://lkml.kernel.org/r/1346821373-31621-4-git-send-email-namhyung@kernel.org Signed-off-by: Arnaldo Carvalho de Melo --- tools/perf/util/header.c | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/tools/perf/util/header.c b/tools/perf/util/header.c index 05c9310c3da1..43425b75f0c9 100644 --- a/tools/perf/util/header.c +++ b/tools/perf/util/header.c @@ -1440,6 +1440,9 @@ static void print_pmu_mappings(struct perf_header *ph, int fd, FILE *fp) if (ret != sizeof(pmu_num)) goto error; + if (ph->needs_swap) + pmu_num = bswap_32(pmu_num); + if (!pmu_num) { fprintf(fp, "# pmu mappings: not available\n"); return; @@ -1448,6 +1451,9 @@ static void print_pmu_mappings(struct perf_header *ph, int fd, FILE *fp) while (pmu_num) { if (read(fd, &type, sizeof(type)) != sizeof(type)) break; + if (ph->needs_swap) + type = bswap_32(type); + name = do_read_string(fd, ph); if (!name) break; -- 2.20.1